Outsourced attribute-based encryption with policy update
In order to achieve the efficient and flexible access control for the encrypted data stored in the cloud,an outsourced attribute-based encryption scheme with policy update was proposed.Based on the standard attribute-based encryption scheme,the functionality of policy update from delegation for a ci...
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| Format: | Article |
| Language: | English |
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POSTS&TELECOM PRESS Co., LTD
2016-05-01
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| Series: | 网络与信息安全学报 |
| Subjects: | |
| Online Access: | http://www.infocomm-journal.com/cjnis/CN/10.11959/j.issn.2096-109x.2016.00055 |
| _version_ | 1811248662949396480 |
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| author | Su-qing LIN |
| author_facet | Su-qing LIN |
| author_sort | Su-qing LIN |
| collection | DOAJ |
| description | In order to achieve the efficient and flexible access control for the encrypted data stored in the cloud,an outsourced attribute-based encryption scheme with policy update was proposed.Based on the standard attribute-based encryption scheme,the functionality of policy update from delegation for a ciphertext without revealing any confidential information of the plaintext and private keys by utilizing the techniques of key blinding and outsourcing decryption was accomplished.Simultaneously,the decryption overhead for a user to recover the plaintext was effectively reduced.The scheme supports non-monotonic access structure and can be proved to have selective IND-CPA security and private key security under standard assumptions,respectively,in the standard model.Compared with similar schemes from literatures,the scheme provides better security and efficiency. |
| first_indexed | 2024-04-12T15:33:05Z |
| format | Article |
| id | doaj.art-0afebe27ce1840d385c58a6a8e1118b6 |
| institution | Directory Open Access Journal |
| issn | 2096-109X |
| language | English |
| last_indexed | 2024-04-12T15:33:05Z |
| publishDate | 2016-05-01 |
| publisher | POSTS&TELECOM PRESS Co., LTD |
| record_format | Article |
| series | 网络与信息安全学报 |
| spelling | doaj.art-0afebe27ce1840d385c58a6a8e1118b62022-12-22T03:27:02ZengPOSTS&TELECOM PRESS Co., LTD网络与信息安全学报2096-109X2016-05-0125394910.11959/j.issn.2096-109x.2016.00055Outsourced attribute-based encryption with policy updateSu-qing LIN0The State Key Lab of Information Security,Institute of Information Engineering,Chinese Academy of Sciences,Beijing 100093,China ； University of Chinese Academy of Sciences,Beijing 100049,ChinaIn order to achieve the efficient and flexible access control for the encrypted data stored in the cloud,an outsourced attribute-based encryption scheme with policy update was proposed.Based on the standard attribute-based encryption scheme,the functionality of policy update from delegation for a ciphertext without revealing any confidential information of the plaintext and private keys by utilizing the techniques of key blinding and outsourcing decryption was accomplished.Simultaneously,the decryption overhead for a user to recover the plaintext was effectively reduced.The scheme supports non-monotonic access structure and can be proved to have selective IND-CPA security and private key security under standard assumptions,respectively,in the standard model.Compared with similar schemes from literatures,the scheme provides better security and efficiency.http://www.infocomm-journal.com/cjnis/CN/10.11959/j.issn.2096-109x.2016.00055attribute-based encryptionoutsourced decryptionpolicy updateprivate key security |
| spellingShingle | Su-qing LIN Outsourced attribute-based encryption with policy update 网络与信息安全学报 attribute-based encryption outsourced decryption policy update private key security |
| title | Outsourced attribute-based encryption with policy update |
| title_full | Outsourced attribute-based encryption with policy update |
| title_fullStr | Outsourced attribute-based encryption with policy update |
| title_full_unstemmed | Outsourced attribute-based encryption with policy update |
| title_short | Outsourced attribute-based encryption with policy update |
| title_sort | outsourced attribute based encryption with policy update |
| topic | attribute-based encryption outsourced decryption policy update private key security |
| url | http://www.infocomm-journal.com/cjnis/CN/10.11959/j.issn.2096-109x.2016.00055 |
| work_keys_str_mv | AT suqinglin outsourcedattributebasedencryptionwithpolicyupdate |